Haier HL22FO1 User manual

1

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does

not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products

powered b electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the

product deal with in this service information by anyone else could result in serious injury or death.

COLOR

TV

@2009 (Full name of the company who issues the service information)

law.

Chassis:MTK5380LC

Service Model:HL22FO1a

Customer Model:HL22FO1

2

CONTENTS

Table of conents………………..................…………………………….2

1. General Information

…………...............…………………………..3

1-1. General Guidelines...…………………………………………………..3

1-2. Important notice………………………………………………………...3

1-3. How to read this Service Manual……………………………………..4

2. Speciﬁcations……………………………………………....................6

3. Location of Controls and Components

...........................7

3-1.Board Location…………………………………………………………..7

3-2. Main Board & AV Board………………………………………………..7

3-3. Power Board…………………………………………………………….9

3-4. LCD Panel………………………………………………………………10

4. Disassemble and assemble…………………...........………….11

4-1 Remove the Pedestal ……………………………………………….…12

4-2 Remove the Back Cover…………………...…………………………..12

4-3 Remove the adhesive tape…….........…………………………………12

4-4 Remove the Terminal Bracket……………....…………………………12

4-5 Remove the power module……….......……………………………….13

4-6 Remove the Main board……………....……………………………….13

4-7 Remove the small power board……………………….………………13

4-8 Remove the speaker …....……………………………………………..13

4-9 Remove the remote control board …….....…………………………..13

5. Installation Instructions ………..................………………..…..14

5-1 External Equipment Connections …………………………..........…..14

5-2 HDMI Connections ..………………………….............................…...16

6. Operation Instructions …………………………........................19

6-1 Front Panel Controls …………………………………………….........19

6-2 Back Panel Controls ……………...……………………………..........19

6-3 Universal Remote Controller...........................................................19

7. Electrical parts ............................................................................21

7-1. Block diagram ...............................................................................21

7-2. Circuit Diagram..............................................................................21

7-3 .Wiring Connection Diagram...........................................................36

8. Measurements and Adjustments .......................................37

8-1. Service Mode ..................................................................................37

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8-1-1.How to enter into Service Mode ......................................................37

8-1-2.How to exit ..................................................................................37

8-2. Measurements and Adjustments ..................................................37

9. Trouble shooting ......................................................................43

9-1. Simple check ...............................................................................43

9-2. Power Supply Board failure check ..............................................44

9-3. Main board failure check ..............................................................45

9-4. Pannel failure ...............................................................................47

4

1. General Information

1-1 General Guidelines

When servicing, observe the original lead dress. If a short circuit is found, replace all parts which

have been overheated or damaged by the short circuit.

After servicing, see to it that all the protective devices such as insulation barriers, insulation papers

shields are properly installed.

After servicing, make the following leakage current checks to prevent the customer from being

exposed to shock hazards.

1) Leakage Current Cold Check

2) Leakage Current Hot Check

3)Prevention of Electro Static Discharge(ESD)to Electrostatically Sensitive

1-2 Important notice

1-2-1. Follow the regulations and warnings

Most important thing is to list up the potential hazard or risk for the service personnel to open the

units and disassemble the units. For example, we need to describe properly how to avoid the

possibility to get electrical shock from the live power supply or charged electrical parts (even the

power is off).

This symbol indicates that high voltage is present inside. It is dangerous to

make any king of contact with any inside part of this product.

This symbol indicates that there are important operating and maintenance

instructions in the literture accompanying the appliance

1-2-2. Be careful to the electrical shock

To prevent damage which might result in electric shock or fire, do not expose this TV set to rain or

excessive moisture. This TV must not be exposed to dripping or splashing water, and objects

Filled with liquid, such as vases, must not be place on top of or above the TV

1-2-3. Electro static discharge (ESD)

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such

Components commonly are called Electrostatically Sensitive (ES) Devices. The following

tech-niquesshouldbeusedtohelpreducetheincidenceofcomponentdamagecausedbyelectro

Static discharge (ESD).

1-2-4. About lead free solder (PbF)

This product is manufactured using lead-free solder as a part of a movement within the consum-er

products industry at large to be environmentally responsible. Lead-free solder must be used in the

servicing and repair of this product.

1-2-5. Use the genewing parts (specified parts)

Special parts which have purposes of fire retardant (resistors),high-quality sound (capacitors), low

noise(resistors), etc. are used.

When replacing any of components, be sure to use only manufacture's specified parts shown in

the parts list.

Safety Component

● Components identified by mark have special characteristics important for safety.

5

1-2-7. Safety Check after Repairment

Confirm that the screws ,parts and wiring which were removed in order to service are put in the

original positions, or whether there are the portions which are deteriorated around the serviced

places serviced or not. Check the insulation between the antenna terminal or external metal and

the AC cord plug blades. And be sure the safety of that.

Insuration Test

1. Unplug the plug from the AC outlet.

2. Remove the antenna terminal on TV and turn on the TV.

3. Insulation resistance between the cord plug terminals and the eternal exposure metal

should be more than M ohm by using the 500V insulation resistance meter

4. If the insulation resistance is less than M ohm, the inspection repair should be required.

If you have not the 500V insulation resistance meter, use a Tester.

External exposure metal: Antenna terminal Headphone jack

1-2-8. Ordering Spare Parts

Please include the following informations when you order parts. (Particularly the Version

letter)

1. Model number and Version letter

The model number can be found on the back of each product and the Version letter can

be found at the end of the serial number.

2. Part No. and Description

You can find them in your service manual

.

The illustration and photos used in this Manual may not base on the final design of products, which

may differ from your products in some way.

1-3. How to read this Service Manual

1-4-1. Using Icons

Icons are used to attract the attention of the reader to specific information. The meaning of each icon is

described in the table below:

Note:

A “note” provides information that is not indispensable, but may nevertheless be valuable to the

reader, such as tips and tricks.

Caution:

A “caution” is used when there is danger that the reader, through incorrect manipulation,

1-2-6. Photo used in this manual

6

may damage equipment, loose data, get an unexpected result or has to restart(part of)

a procedure.

Warning:

A “warning” is used when there is danger of personal injury.

Reference:

A “reference” guides the reader to other places in this binder or in this manual, where he/she will

find additional information on a specific topic.

2. Specification

Model

Screen size

21.6inch

Aspect ratio

16:9

Resolution

1366 768

Contrast Ratio

1000:1

Angel of view

H:170/V:160

Color display

16.7M

OSD language

English

Color system

ATSC/NTSC

Color Temperature

Cold/Standard/Warm

Audio output power(Built-in)(W)

3W×2

Power Consmption(in Standby)

1W

Total power input W

50W

Voltage range V

120V±10% V

Power frequency Hz

60HZ

Time of sleep timer(MINS)

240Min

Net weight(KG)

4.5

Gross weight(KG)

5.6

Net dimension(MM)

534/164/392

Packaged dimension(MM)

600/210/460

3. LOCATION OF CONTROLS AND COMPONENTS

HL22FO1

7

3-1 Board Location

No. Parts number Description

B Board Power Board

3-2 Main Board & AV Board

3-2-1 Function Description:

Main Board：

Process signal which incept from exterior equipment，then translate into signal that panel can

display.

3-2-2 Connector definition

Main board connector

Power connectors (CN3, CN5)

CN3 CN5

A Board

B

Board

A Board Main Board

8

Notes:

CN3-Pin 3: Backlight on/off:

The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit

path.

CN3-Pin 7: System power on / standby

System board will use this pin to control system power.

CN3-Pin 4: Control the luminance of backlight

The system can generate the PWN signal to control the strength of TFT LCD Panel’s backlight

through this connector.

Keypad and remote connector (CN2)

Pin number Signal name Description

1 IR_IN IR

2 CPU5V 5V

3 LED_G LAMP GREEN

4 GND GND

5 LED_R LAMPRED

6 K7 POWER

7 K6 MENU

8 K5 P_

9 K4 P+

10 K3 V_

11 K2 V+

12 K1 SOURCE

Speaker connector (CN1)

Pin number Signal name Description

1 LSPK LSPK

2 GND GND

3 GND GND

4 RSPK RSPK

DVD VIDEO Connector: CN6

Pin number Signal name Description

Pin number Signal name Pin number Signal name

1 +12V 1 +12V

2 +12V 2 GND

3 BL 3 GND

4 DIM 4 +5V

5 GND 5 STB

6 GND

7 SW

9

1 GPIO GPIO

2 PB_IN PB1 IN

3 Y_IN Y1_IN

4 GND GND

5 PR_IN PR1 IN

6 GND GND

7 IR DVD IR

DVD AUDIO Connector: P1

Pin number Signal name Description

1 LI YPBPR1L_IN

2 RI YPBPR1R_IN

3 GND GND

Other connectors:

CN19 to Upgrade the program of MTK5380LC (U13) AND FLASH (U17)

U0TX

+3V3SB

U0RX

J3

4x1 W/HOUSING

DIP4/W/H/P2.0

1

2

3

4

3-3. Power Board

3-3-1 Function Description:

Supply power for Main board, Panel.

3-3-2Connectordefinition

INPUT CONNECTOR (CN6)

CN10 Signal name

10

3-4. LCD Panel

3-4-1 Function Description:

Display the signal.

3-4-2 Connector definition

1 N

2 GND

3 GND

4 DIM

5 EN

6 +12V

7 +12V

Pin number Signal name Description

1-3 LVDSVDD Power for panel

4-6 GND Ground

7 A0N LVDS EVEN 0 - Signal

8 A0P LVDS EVEN 0 + Signal

9 A1N LVDS EVEN 1 - Signal

10 A1P LVDS EVEN 1 + Signal

11 A2N LVDS EVEN 2 - Signal

12 A2P LVDS EVEN 2 + Signal

13,14 GND Ground

15 CK1N LVDS EVEN Clock - Signal

16 CK1P LVDS EVEN Clock + Signal

17 A3N LVDS EVEN 3 - Signal

18 A3P LVDS EVEN 3 + Signal

19 A4N LVDS ODD 0 - Signal

20 A4P LVDS ODD 0 + Signal

21 A5N LVDS ODD 1 - Signal

C M O （ V 2 1 6 B 1- L 01)

11

CN1 (Header):S14B-PH-SM4-TB (D)(LF)(JST) or equivalent.

Pin No. Symnbol Description

1

2

3

VBL

+5.0V Power input

4

5

6

13

14

25

26

GND

Ground

7-12

15

16

17

18

LVDS EVEN

LVDS EVEN Signal

19-24

27

28

29

30

LVDS ODD

LVDS ODD Signal

4. Disassemble and assemble

22 A5P LVDS ODD 1 + Signal

23 A6N LVDS ODD 2 - Signal

24 A6P LVDS ODD 2 + Signal

25,26 GND Ground

27 CK2N LVDS ODD Clock - Signal

28 CK2P LVDS ODD Clock + Signal

29 A7N LVDS ODD 3 - Signal

30 A7P LVDS ODD 3+ Signal

4.1Remove the Front Cover

①

②. Stand up the TV,open the TV from the bottom.

③Remover pin indicated with ○.

④

Remover the six screw indicated with ○.

Then remove the front cover from the unit.

4.2Remove the LCD panel

①

②

③

①Remover the four screw indicated with ○.

②.Then remove the panel.

4.3Remove the Main Board

①Remover the four screw indicated with ○.

②Remover the four screw indicated with ○.

③Then remove the Main Board.

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4.5Remove the Power Board

①Remover the four screw indicated with ○.

②Then remove the Power Board.

4.7Remove the Keypad

Assembly

①Remover the two screw indicated with ○.

②Then remove the Keypad Assembly.

4.6Remove the Speaker

①Remover the four screw indicated with ○.

②Then remove the . Speaker

4.8Remove the Remote

Control Board

①Remover the one screw indicated with ○.

②Then remove the Remote Control Board .

4

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5. Installation Instructions

5-1 External Equipment Connections

Antenna Connection

Connect one end of a coaxial cable (not included) to the ANT IN jack on the back of your TV/DVD

combo, then connect the other end of the cable into the antenna or cable TV wall outlet.

To improve picture quality from an antenna in a poor signal area, install a signal amplifier.

If you need to split the antenna signal to connect two TVs, install a two-way splitter.

Choose Your Connection

There are several ways to connect your television, depending on the components you want to

connect

and the quality of the signal you want to achieve. The following are examples of some different

ways to connect your TV with different input sources. Choose the connection which is best for you.

PC AUDIO IN

VGA IN

You can use your LCD-TV as a monitor for your personal computer using a VGA

cable (not supplied).

VGA Setup

Connection and use steps:

1.Read the user guide supplied with

your computer and ensure that it has

a VGA connector;

2.Make sure that the power of the LCD

-TV and the PC are off;

3.Connect a D type 15-pin PC interface

cable ( not supplied ) to the PC video

interface connector on the PC. Then

connect the other end to the PC video

interface connector on the back of the

LCD-TV.Tighten the screws on the PC

connectors once they are firmly

connected;

4.Turn on the power of the LCD-TV first ,

and then turn on the power of the PC;

5.Press INPUT button to set the video input mode of the LCD-TV to PC;

Once the input for PC is selected and if you see no image press function

F8 on you pc.

6.Check the image on your TV. There may be noise associated with the resolution,

vertical pattern, contrast or brightness in PC mode. If noise is present, change

the PC mode to another resolution, change the refresh rate to another rate or

adjust the brightness and contrast on the menu until the picture is clear. If the

refresh rate of the PC graphic card can not be changed, change the PC graphic

card or consult the manufacturer of the PC graphic card.

Resolution

Mode

VGA

SVGA

XGA

Resolution

640x480

800x600

1024x768

Line frequency(KHz)

31.5

37.9

48.4

Frame frequency(Hz)

60

Component Setup

How to connect

Connect the DVD video outputs (Y, PB, PR)

to the Component(Y, Pb, Pr) IN jacks on

the TV and connect the DVD audio outputs

to the AUDIO IN jacks on the TV, as shown

in the figure.

NOTE: If your DVD player does not have

component video output,use S-Video.

How to use

1. Turn on the DVD player, insert a DVD.

2. Use button on the remote

control to select the proper input.

INPUT

Note: All above listed are subject to VESA criteria.

COMPONENT IN

Pr Pb Y

R-AUDIO-L

S-VIDEO IN

15

16

5-2 HDMI Connections

When the source device(DVD player or Set Top Box) supports HDM

How To Connect

1. Connect the source device to HDMI port of this TV with an HDMI cable(not supplied with this

product).

2. No separated audio connection is necessary.

Cable TV Setup

After subscribing to a cable TV service from a local provider you can watch cable

TV programming. The TV cannot display TV programming unless a TV tuner

device or cable TV converter box is connected to the TV.

For further information regarding cable TV service, contact your local cable TV

service provider(s).

Connection Option 1

1. Select 3 or 4 with channel switch on cable

box.

2. Tune the TV channel to the same selected

output channel on cable box.

3. Select channels at the cable box or with

the cable box remote control.

Connection Option 2

1. Connect the audio and video cables from

the Cable Box's output jacks to the TV

input jacks, as shown in the figure.When

connecting the TV to a Cable Box, match

the jack colors

(Video = yellow, Audio Left = white, and

Audio Right = red).

2. Select the input source by using the

button on the remote control.

3. Select your desired channel with the

remote control for cable box.

INPUT

COMPONENT IN

Pr Pb Y

ATN IN R-AUDIO-L R-AUDIO IN-L

S-VIDEO IN

VIDEO

R-AUDIO IN-L VIDEO

External Component Source Setup

How to connect

Connect the audio and video cables from

the external equipment's output jacks to the

TV input jacks, as shown in the figure.

When connecting the TV to external equip-

ment, match the jack colors (Video = yellow,

Audio Left = white, and Audio Right = red).

How to use

1. Select the input source by using the

button on the remote control.

2. Operate the corresponding external equi-

pment. Refer to external equipment ope-

rating guide.

INPUT

17

How To Use

If the source device supports Auto HDMI function, the output resolution of the source device will be

automatically

set to 1280x720p.

If the source device does not support Auto HDMI, you need to set the output resolution

appropriately.

To get the best picture quality, adjust the output resolution of the source device to 1280x720p.

Select HDMI input source in input source option of Select Main source menu.

When the source device(DVD player or Set Top Box) supports DVI

How To Connect

1. Connect the source device to HDMI port of this TV with a HDMI-to-DVI cable(not supplied with

this product).

2. A separated audio connection is necessary.

3. If the source device has an analog audio output connector, connect the source device audio

output to DVI Audio

In port located on the

left side of HDMI port.

How To Use

If the source device supports Auto DVI function, the output resolution of the source device will be

automatically

set to 1280x720p.

If the source device does not support Auto DVI, you need to set the output resolution appropriately.

To get the best picture quality, adjust the output resolution of the source device to 1280x720p.

Press the INPUT button to select HDMI input source in input source option of Select Main source

menu.

Installation

Cable sample

HDMI Cable

(not supplied with the product)

HDMI to DVI Cable

( not supplied with the product)

18

Connecting Headphones

You can connect a set of headphones to your set if you wish to watch a

TV programmer without disturbing the other people in the room.

Plug a set of headphones into the 3.5mm

mini-jack socket on the rear panel of the set.

Note：

■ Prolonged use of headphones at a high volume

may damage your hearing.

■ You will not receive sound from the speakers

when you connect headphones to the system.

Power source

TO USE AC POWER SOURCE

Use the AC polarized line cord provided for operation on AC.

Insert the AC cord plug into a standard polarized AC outlet.

NOTES:

■ Never connect the AC line cord plug to other than the specified voltage.

Use the attached power cord only.

■ If the polarized AC cord does not fit into a non-polarized AC outlet,

do not attempt to file or cut the blade. It is the user`s responsibility to have an

electrician replace the obsolete outlet.

■ If you cause a static discharge when touching the unit and the unit fails to

function, simply unplug the unit from the AC outlet and plug it back in. The unit

should return to normal operation.

Analog Audio Cable

(Stereo to RCA type)

(not supplied with the product)

YPbPr

Audio In

LR

Headphone

out

S- VID EO

Polarized AC Cord Plug

AC Outlet

Wider Hole

and Blade

19

6. Operation Instructions

Basal information

6-1 Front panel controls

6-2 Back panel controls

6-3 Setting Up Your Remote Control

After it has been set up properly, your remote control can operate in six different modes:

TV, VCR, CABLE, DVD, SETBOX or AUDIO. Pressing the corresponding button on the remote

control

R1 series series F series K1 1

INPUT MENU VOL- VOL+ CH- CH+ POWER

Control Panel Function

1. POWER Press to turn on and off the TV.

2. INPUT Selects the input signals.

3. MENU Menu display. Press to access the on-screen menu display.

4. VOL- Volume down / Left button to adjust the item in the OSD.

VOL+ Volume up / Right button to adjust the item in the OSD

/Press to enter.

5. CH- TV channel down / to select the item in the menu.

CH+ TV channel up / to select the item in the menu.

6. Power indicator

7. Remote Sensor Receivers IR signals from the remote control.

Do not put anything near the sensor ,which may

block the remote control signal.

COMPONENT IN

Pr Pb Y

ATN IN R-AUDIO-L R-AUDIO IN-L

PC AUDIO IN

VGA INUSB HDMI

S-VIDEO IN

VIDEO

1.ANT IN(Antenna Input) Connect cable or antenna signals to the TV, either

directly or through your cable box.

2.Headphone jack : Headphone audio output terminal.

3.Audio in Connect audio output from an external device to these jacks.

4.S-VIDEO Connect S-Video out from an S-Video device to the jacks.

5.Audio in Connect audio output from an external device to these jacks.

6.Video in Connect video output from an external device to this jack.

7.USB input Connect a USB flash drive to view JPEG images or listen to MP3

songs.

8.VGA Connect to the VGA 15PIN analog output connector of a PC

graphics card to use set as a PC display.

9.PC audio in Connect the audio output from the pc to the PC audio input port.

10. HDMI: Connect a HDMI device to receive digital audio and uncompressed

digital video.

11. Component Input Connect a component video device to these jacks.

Remote Control Key Functions

When using the remote control, aim it

towards the remote sensor on the TV

(For TV without DVD)

PICTURE

CCD

INPUT

ARC

MENU

VOL-

EXIT

USB

PLAY/PAUSE

REV

DISPLAY GUIDE

1 2 3

4 5 6

7 8 9

MTS/SAP

CH+

CH-

VOL+

ENTER

STOP

0

AUDIO

SLEEP

REPEAT

MUTE

RECALL

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Note: the instruction on this manual takes

remote of TV with DVD for example.

1.Press repeatedly to cycle through the available

picture modes

2.Press to change the aspect ratio

3.Select a closed caption

4.Show the input source

5.Press to open the on-screen menu

6.Volume/Channel Selection

7.Exit On Screen Display

8.Press to switch input source to USB in

9.DVD PLAY/PAUSE

10.DVD fast reverse

11.DVD fast forward

12.Press to display the TV status information on the top

of the TV screen

13.Shows program schedule in TV

14.Press to turn on and off the TV

15.Press to cycle through different sound settings

16.Press to display the sleep timer option

17.Select MONO, STEREO, SAP in NTSC system

18.Press to change a channel

19.Press to select digital channels. For example, to

enter “54-3”, press “54”, “ ” and “3”.

20.Switches the video sound on or off

21.Accesses the highlighted item in the on-screen menu

22.Press to jump back and forth between two channels

23.DVD REPEAT

24.DVD STOP

25.DVD Next Chapter

26.DVD Previous Chapter

27.Open the channel list in TV

28.Open the favorite channel list in TV

20

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Haier HL22FO1 User manual

Haier HL22FO1 User manual

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